Self-oiling car-wheel.



No. 687,65I, Patented Nov. 26. 190|. F. J. HADFORD.

SEL'F OILING CAR WHEEL.

(Application filed Apr. 2s, 1901.) (N o M o d e I TN: Nonms persas co., Pumaumo'.. WASHINGTON. D. c.

UNITED STATES FFlCE-t FREDERICK J. RADFORD, OF TRINIDAD, COLORADO.

SELF-OILING CAR-WHEEL.

SPECIFICATION forming part of Letters Patent No. 687,651, dated November 26, 1901. Application tiled April 26, 1901. Serial No. 57,585. (No model.)

To @ZZ whom t nur/y concern:

Be it known that LFREDnRIcK J. RADFORD, a citizen of the United States,residing at Trinidad, in the county of Las Animas and State of Colorado, have invented new and useful Improvements in Self-Oiling Car-Wheels, of which the following is a specification.

My invention has for its object to provide a self-oiling car-wheel which while equally as eliicient is a material simplification of those extant,and its novelty and advantages will be fully understood from the following description and claim when taken in conjunction with the accompanying drawings, in which- Figure l is a diametrical section of my improved wheel with the exterior lugs of the cap partly in elevation. Fig. 2 is a perspective View of the body or main portion of the wheel, and Fig. 3 is a perspective view of the closure-cap of the oil-chamber removed.

Similar letters of reference designate corresponding parts in all of the views ot' the drawings.

The body or main portion A ot' my improved wheel is cast in one piece, of iron or other suitable metal, and comprises a hub a, having a central bore ZJ to receive an axle-spindle, andV also having an oil-chamber b surrounding the bore b, and ports b2 for feeding oil to the axlespindle, a rim c, having a flange d, spokes e,

interposed between the hub and the rim, an extension c" at the inner end of the hub, provided With a countersink e2 to receive the collar usually provided on car-axles, and an annular extension B, which projects outwardly from the outer face of the hub c. The said extension B is provided in its inner side and in alinement with apertures f in the outer end wall of the oil-chamber with grooves or pockets f for oil, and is also provided with exterior threads g, which extend to the outer face of the hub a and are designed for the engagement of the closure-cap O. The closurecap, which is best shown in Fig. 3, is cast of one piece of iron or other suitable metal and is provided with interior threads h to engage the threads g of extension B, a plane inner edge t' to meet the plane outer face of the hub a, radial lugs j, calculated to afford a secure hold and facilitate placing of the cap on the extension B and the removal of said cap Vwhen the cap O is screwed up tight, so that its inner edge bears against the outer face of the hub a, there is no liability of oil leaking from the auxiliary chamber D, formed by eX- tension B and cap O, and no liability of the Ycap working loose. From this it follows that in my improved self-oiling Wheel the use of bolts, gaskets, and similar appurtenances, which tend to materially increase the oost of the self-oiling wheels extant, are unnecessary.

The bore l) terminates at its outer end flush with the outer face, of the hub, while the annular extension B projects beyond the face of the hub and is` provided in its inner side and in alinement with the aperturesfin the outer end wall of the oil-chamber l2 with grooves f', as before described. By virtue of this construction it Will be observed that an oil-chamber D of large capacity is aiforded, to which oil is fed through the aperture 7c in the "cap O, that the oil is free to gravitate into the' grooves or pockets f' and be led `thereby into the chamber b, and thatthe said grooves or pockets are adapted to carry the oil up as the wheel revolves and feed the same to *the upper portion of the chamber b.

When desired, it is obvious'that in lieu of providing the body or main portion A of the wheel with spokes e it may be cast solid; also that such other changes or modifications may be made in practice as fairly fall within the scope of my claim.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-

The self-oiling car-wheel comprising the body or. main portion made up of the hub provided with the plain outer face, the central bore having its outer end arranged flush with the outer face of the hub, the oil-chamber surrounding and connected with the bore and having the openings f in its outer end wall, and the annular extension B projecting from In testimony whereof I have hereunto set my hand in presence of two subscribing wit- Io messes.

FREDERICK J. RADFORD.

Titnessesr GEO. A, REESE, JOHN HUMPHREYS. 

